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首页> 外文期刊>Journal of Applied Polymer Science >Chemical Modification of LDPE Film
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Chemical Modification of LDPE Film

机译：LDPE膜的化学改性

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摘要

Low-density polyethylene (LDPE) film was chemically modified by chromic acid treatment to generate polar groups on the surface. The film samples were etched by chromic acid with variation of temperature at a constant time (30 min) and variation of time at a constant temperature (room temperature = 26deg C). The variation of weight and thickness of the flm samples before and after etching was measured. The surface morphology of the etched films was studied by scanning Electron Microscopy (SEM). IR and XPS analysis revealed the introduciton of polar groups like -COOH, >C=O, -SO_3H on the etched LDPE film surface, which exhibited improved printability. Etching also enhanced adhesion with epoxy resin. The mechanical properties of hte laminates of the two specimens of hte same film sample with epoxy resin were also measured.
机译：低密度聚乙烯（LDPE）膜通过铬酸处理进行了化学修饰，以在表面生成极性基团。用铬酸蚀刻膜样品，其中铬酸在恒定时间（30分钟）内温度变化，在恒定温度（室温= 26℃）下时间变化。测量了蚀刻前后的薄膜样品的重量和厚度的变化。通过扫描电子显微镜（SEM）研究蚀刻膜的表面形态。 IR和XPS分析表明，在蚀刻的LDPE膜表面上引入了极性基团，例如-COOH，> C = O，-SO_3H，这显示出改善的可印刷性。蚀刻还增强了与环氧树脂的附着力。还测量了同一薄膜样品与环氧树脂的两个样品的层压板的机械性能。

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